Not open. According to official website of National University of Defense Technology, the school is not open to the public, and only authorized groups can visit it at certain time, so the gym in the school is not open to the public. PLA National University of Defense Technology is located in Changsha City, Hunan Province. It is a comprehensive military university directly under the Central Military Commission of the Chinese Productive Party, and has always been a key institution for national and military construction.